Matrix independent determination of N at trace levels.
The rapid MICRO N cube measures low level nitrogen concentrations with a detection limit of 10mg/kg of a wide range of samples. Its specialty: nitrogen determination is carried out using the Dumas method, after reduction of the oxides of nitrogen the resulting N2 is measured using a thermal conductivity detector.
Until now such low level concentrations were measured via oxidation to NO followed by chemiluminescence detection, the disadvantage of this method is NO formation is matrix dependent which results in method error and the need for matrix dependent calibration. The rapid MICRO N cube offers the matrix independent Dumas method in combination with high sensitivity.
Samples digestion is by catalytic combustion at a temperature of 950°C, the nitrogen-containing components in the sample form a mixture of N2 and oxides of nitrogen, other combustion products formed i.e. water, oxides for carbon and sulphur are chemically removed. The resulting gases then pass through the reduction tube, where they are safely reduced to N2 and measured by thermal conductivity detection.
The system is designed for easy, low maintenance operation; matrix independent analysis allows the use of a standard ‘universal’ calibration for any sample type. The front door of the analyzer opens to give excellent access for replacement of consumables exchange of combustion and reduction tube is particularly easy due to the slide-out furnace.
Elementar gives a 10-year warranty on both the furnace and thermal conductivity cell, thus emphasizing the stability of the system.
Rapid N Cube is designed for the cost-effective analysis of large sample series.
Dumas combustion method for N-Protein acc. to AOAC, DIN/ISO, EN and many international standards.
Large weighing range:
Up to 1 g sample weight (1g organic matter).
From ppm to 100% or 500 mg N abs.
Clean, safe, fast:
The analysis only takes a few minutes, no aggressive or toxic chemicals are used, CO2 as intelligent carrier gas.
Easy installation requirements:
48 x 55 cm benchtop space, 1 power supply (230, 110, 100 V), and two gases are sufficient for maintenance free long time operation.
Stable over months and matrix independent.
Instrument control :
With a standard PC for perfect results also for unknown or heavily variable sample matrices, 21 CFR Part 11 functionality available. Possibility for remote service due to full digitalization of the instrument electronics.
Maximum performance on a micro footprint.
Facts of Superiority
Largest sample size:
Up to 5 g sample weight for CN analysis. Up to 330 mg absolute or
500 mg C content can be measured.
90 position autosampler:
For 5 ml steel crucibles for solids and liquids with virtually unlimited life. Automatic ash removal and rechargeable at any time also during operation.
Highest speed of analysis:
Less than 4 min for N (sample to sample). High sample throughout is realized without interruption by blank and recalibration measurements.
e.g. 5 ppm N in beer or 10 ppm C in soil.
Extreme long time stability:
For unattended, fully automated overnight operation. Only one blank value check is required per day.
Efficient water removal:
A multistep condenser and Nafion(R) gas dryer results in along time maintenance free operation, even for continuous series of 2 ml aqueous samples.
Automated Analysers for the elements C, H, N, O, and S.
CHNOS Elemental Analysis
Long-time Market Experience optimizes our devices for the use in CHNOS Elemental Analysis.
Most important is the large dynamic range of detection, from < 0.01 to 100%. This range is even possible when there is a great difference in relative concentrations (i.e. trace nitrogen in the presence of high carbon content). Elementar analysers also feature very large sample size capabilities from < 1mg up to several grams. This wide range of applications with universal as well as special instruments is only achieved by Elementar.
vario MICRO cube
The definition of elemental micro analysis
The modern "cube" platform is setting the standards for elemental analysers. Outstanding instrument design and intelligent engineering in combination with 110 years’ experience in the development of elemental micro-analysers lead to unmatched precision of your analysis. Less than 1 mg pharmaceuticals can be analysed just as precise as 500 mg soil samples. Volatile gasoline or temperature-proof silicon carbide can be analysed just like coal, foodstuff or sewage sludge - without restriction of the elements, simultaneously for CHNS or for the combinations CNS, CHN, CN, O and Cl.
vario EL cube
The benchmark in elemental analysis
Using more than one hundred years’ experience in elemental analysis in close contact with today's users of our instruments the vario EL cube was developed for a growing and changing demand in the 21st century.
The high-end solution for all applications:
vario MACRO cube
The art of elemental analysis:
Whether in coal, oil or soil analysis, the elemental analysis of macro samples is a particularly technical challenge for an analyser. Elementar has solved this task in a sophisticated way by offering the vario MACRO cube.
The elaborate design of the "cube" instruments is good looking and makes this perfect function possible. Ergonomics and functionality are finely linked here. vario MACRO cube can be adjusted to today's and tomorrow's requirements due to its modularity. However, the most important requirement of an analyser is still the accuracy of the analysis. And vario MACRO cube simply works accurately.